[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

re: Big XML file


parsing big xml files
Miguel A. Robles writes:

 > I usually work with XML for sending on information between
 > different servers or applications. For example, currently I'm
 > working with web services and everithing works fine. The problem
 > appears now, because I have to parse a document containing a lot of
 > information. DOM is not enough to accomplish the object because the
 > document is extremly large, and I don't know how SAX deals with
 > this kind of files.

SAX was designed to deal with precisely this kind of input.  A
SAX-based parser should have constant memory usage no matter how big
the XML document is -- that is why (for example) SAX allows text to be
broken up into chunks between elements.

Unfortunately, there are still ways to screw up a SAX-based parser
with a big document, such as including tens of thousands of attributes
or gigabyte-long processing instructions or element/attitude names.
They are pathological, but they do exist.


All the best,


David

-- 
David Megginson, david@m..., http://www.megginson.com/

  • References:

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
 

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.


Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.